Abhijit Banerjee, Ford Foundation International Professor of Economics, MIT, talks to Tim Phillips about the run-up to 2011 elections in Delhi, India, where residents in a random sample of slums received newspapers containing report cards on politicians. The information was obtained under India’s disclosure laws. The cards presented information on the performance of the incumbent and the qualifications of the two main challengers. Treatment slums saw higher turnout, reduced vote buying, and a higher vote share for better performing and more qualified candidates. Voters assessed whether candidates catered to their interests and compared their performance. Social media can undermine or dilute access to credible information among voters.